Knitting-machine.



'-vtheshdin hasta -ments in Knitting-Machines, Vof .which the following is a specification.

Needle cylinders, structed, are provided with slots for to ling the reciprocating needles, the said slo being formed by cutting or milling them rectly in the wallof the-cylinder.

practice is-objectionable because in hardeningthe cylinders the wallsbetween the slots there liable to: get out'o truerelationand aiect the perfect guidancevofvthe needles.,

` it has been -proposedl heretofore to; provide i' needle cylinders with insertedlwalls for the needle grooves or slots, and my present in- Yvention relates to this general form of' needle cylinder. By the use of the inserted walls the hardening ofthe body portion 'of the cylinder may be dispensed with, the walls alone being hardened before insertion te into the, cylinder, and thus providing guiding surfaces suiiciently hard to withstand the wear. v V- u l The 'present invention consists in the featuresv of construction and arrangement and t@ combination of parts hereinafter described and particularly defined by the .appended claims.

lin the accompanying drawings; Figure 1 is a sectional `view of a; part of itt` a needle cylinder and sinker or web holder dial with my improvements combined there- `Fig. 2A is a'view of one of the lower in'- aerted walls or strips which may be .of ft@ hardenedmaterial to withstand 'the wear of g needles, or needles-and'jals;

Fig; 3 is a side view of one of the needle wall members; and v Fig.v d is a front elevation'of a portion Vof et 'the needle cylinder;

Fig. 5 is a view showing. another form of *certain ofthedevices; f 1 Fig.' 6 is a .viewjsimilar to Fig. 1 of anf'other form of theinvention; ttl "Fig 7is a view t a group of elements be* i f i' 1s a ring 11a secured by ring is beveled onits Ainner side at 29, and

screws 2 the ring 3' having the gear'd tt formed thereon, by which the cylinder is roi t ISTOWN ,PENNSYLV-t f N GO., A CORFU?? EIGN OF PENNSYLVAMA.

tpeeracanm or netcom iraient.A application mea november ce, rait. certaine. cassa.

' l my invention is not limited to that typ needles as ordinarily conguid-l --or ring .11 in which are guided sinkers, web

needles and pre1* -sections at 2 7, and thus `these -wall sections or. web holderI dial.

attached thereto .by

. Patented non er., iai a Y `tajted. llt will' be understood, however, that e of machine in which the cylinder rotates. The ring 3 bears in a lframe ring 5, which hasthe ring lor plate G connected therewith which, t0 in turn,- supports the cam cylinder. 'llhe may be either of the latch type or 'the spring-beard type. Surrounding the upper portion of the needle cylinder isa dial d5 holders or like instruments. rllhe needle guiding walls, insteadof being formed directly or'integrally with the main 'body ot the cylinder by deeply slotting said cylinder, are-provided 'by lower pieces or stripe 15,5and'by' t a 1 piecesl orplatesb; .The l within Vshallow grooves of the cylinder indicatedbythedotted lines 17 in Fig. l, the

said .wallsbeing suciently wide to project from these shallow grooves to afford guidance for the heels of the needles, or for the jacks. The said wall members l5 are provided at their lower ends with beveled projectionslS tting between the t@ bottom of the shallow grooves of the'cylin` der, and a beveled rim or Hange 19 formed on the clamp ring 3 which is secured to the bottom of the vcylinder by screws 3", 'llhe upper ends of these lower wall sections are provided with beveled projections 18' which are engaged by downwardly extending bevdit eled projections 20 of the upper wall sections 16. i. These upper wall sections are proyided with projections 22 on their inner to edges which fit into a circumferential groove 23 near the top of the cylinder, and these upper wall sections have their upper ends 24 terminating just below the slots 25, 25 in the cylinder and dial or ring which supports the Aradially movable instruments. The upper-wall sections 16 have wider central portions 26, and asshown in Fig. 1 the sinker or webV holder dial 11 rests upon the shoulder or upperv edge of these upper wall tot) dit serve as hangers for s pporting the sinlrer Y Removably attached tothe main portion or ring 11 of the sinkeror web-holder ring tot screws 28. rllhis bears against a. correspondingly beveled edge of the upper wall section serving to y seat and clamp lthe upper wall sec- 1li@ tion it will be seen vided with recesses Aserves to force From this constructhat portions of -the sinker dial or ring embrace the laterally or radially projecting wider portions of the upper wall members, and as these wall members are hung to the cylinder and are held against vertical displacement, the dial is securely held in place, and as just stated, the dial or rather the lower ring 11a thereof by the wedging effect of the beveled surface tions to the cylinder,

them in place. The lower wall sections'l may be made of hardened material to withstand the wear due to the thrustof the needle cams against the needle jacks, or against the needles if needles are'employed without jacks, whereas the upper wall sections need not be hardened, as the wear against these is not sufficient to necessitatehai'dening.

By making the needle wall of the upper and lower sections` as described, the lower sections can be removed and replaced when worn without disturbing the upper wall sections or the sinkers, web holders, or the dial therefor.

In renewing any of the lower wall sections the screws 2 may be removed, andl the cylinder lifted away from the ring 3, and access can thus be had to the lower wall sections for their removal and replacement. I

The needles may be held in place by spring bands and the upper w-all sections are pro- 32 to accommodate these bands.

It will be seen that the lower wall secthe wall sections to and hold' inner or upper face to fit y tions will be wedged into place and clamped lof the form of the lower in the cylinder grooves because of the beveled edges of the upper wall sections and the upper ends of the sections 15 and because ends of said sec- I prefer to protions 15 and the ring 3.

fulcrum vide the lower wall sections with points at to bear on groove in the cylinder so that in placing thesewalls in position their upper beveled ends are engaged under the beveled lower edges of the upper wall sections 16 and then the said lwalls inwardly on the points m as fulcrums and by seating the lower beveled ends of the walls. within the beveled ring 19 and screwing the parts together the walls 15 4will be irmly seated and clamped. AIn this fulcrum action the lower ends of the upper sections will spring or yield sufiiciently to the movement of the upper ends of the lower sections.

The needle cylinder may have its groovescut in the ordinary manner clear throug from top to bottom. i

, By reason of the fulcrum and the'beveled contacting edges at the upper end of the inserted walls 15, some pressure is necessary the bottom of the.

to swing the inserted wallsv against theiry seats in'the 4cylinder grooves and the action of the beveled contacts at the said lower ends of the walls 15 is to wedge said walls upwardly. It will be observed also that the contact between the lower wall sections 15 and the upper wall sections 16 takes place at a point below the plane of the clamping ring 11a that is to say the upper wall has a portion depending belowthe point where wedging or clamping pressure is exerted thereon by the encircling ring and it is with this depending portion that the wedging action takes place upon the lower wall sections.

, I show inFig. 5 a modification in which the beveled or wedge construction is not present and while such construction is practical, I prefer to employ that first described.

In Figs. 6 and`7 I show sections of the cylinder wall substantially like those 15 and 16 before described, and the needle cylinder is mounted on the ,gear ring 3 in a manner substantially similar to that' shown in Fig. 5, that is to say, the lower edge of the cylinder its inside a flange or rib 3 in the gear ring. The needle guiding walls 15", however, terminate at a point above the lower edge of the cylinder, and their lower inclined edges are borne upon by a: ring 19x inclined on its the incline of ihn edges of the walls. f

This ring is of the outside of the'cylinder and below the grooved portion thereof. The ring is pressed upwardly and held by screws 3b which are held in the lower edge of the cylinder' and which have their heads adapted to engage and press upwardly upon the ring 19X, and thus press the needle walls 15x upwardly and inwardlysto clamp them against the cylinder and against the wall sections 16. There may be three of the screws or more or less, as desired, and the cylinder is counterbored at 30 to receive them. y f The needle cylinder is secured to the ring 3 by screws such as shown at there may be three of these alternating with the screws 3b. By this construction the neea diameter to fit against ico 2, Fig. 5, and

dle cylinder is centered entirely independent of the means employed to clamp the. walls in place. ,This centering is due to fitting Athe cylinder within thev {iange or rib 3 and securing `it bythe screws 2.

.I claim as my invention l. In combination with a needle cylinder having shallow grooves, lower wall sections for guiding the-needles seated in said shallow grooves, a ring engaging the lower ends of-said lower wall sections and removably attached to the cylinder, upper needle guiding wall sections having their lower ends interlocked with the lower wall sections to hold them in pla-ce, said needle cylinder having a circumferential groove, and said upper -wall sections having a portion fitting in said groove, and means for holding the said upper wall sections in en agement with said v groove, substantially as escribed.

' web mancia lower and upper sections interlocking with each other, said needle cylinder havinga circumferential support engaged by the upper needle wall sections, said upper needle wall sectionshaving shoulders, a web holder or sinker dial supported on said shoulders and surroundingthesaid upper'needle wall sec- A tions to hold them in connection withthe lower ends of the lower needle wall sections to the cylinder, substantially as described.

needle cylinder, and means for holding the 4. In combination with a needle cylinder having shallow grooves,'needle guiding walls formed of upper and lower sections seated in said grooves, said needle cylinder havi a circumferential groove near its upper en f and-the said upper needle wall sections hav-- ing projections entering said ooves and having their lower lends interloc ed with the lower needle wall sections, means for holding the lowerends of the lower needle wall sections to the needle cylinder, a sinker or web holder dial supported on the upper needle wall sections, and a ring, removably secured tothe lower side of the said dial and engaging from below the lower needle wall sections,lsubstantially as described.

5. In combination with .a needle cylinder,

an inserted needle wall section having a projectionentering a circumferential groove in the cylinder, and having notches 'for spring bands, and also having la projection to intersections, said if:

lock with lower needle wall projections supporting the wall section independently of the lower wall-section, substan- 1 tially as described.

6 In combination a needle cylinder, a bed surrounding said cylinder, needle walls rei instruments worln'ngin walls-terminating at\,a point below the lower movably carried by the said cylinder, said ,bed being 'supported 'on the'needle walls, in-

struments guided in the bed, and a'v ring movably secured to the lower side of saidbed and engaging parts of the said'fremovable walls for clamping them in placeg'sub- `stantially as described. f

7. In combination'a needle `cylinder-haw ing a circumferential groove, needle walls having projections entering saidl groove and -having Voutwardly extending portions, a bed i supported on said-outwardly extending portions and'surrounding the said walls, and

upon the inserted holding the lower ends said bed, the said.l

edge of the said instruments, substantially as described. f

8. In combination a needle cylinder, needle guiding walls inserted therein, and interlocking therewith serted walls and having a beveled portion to engage the inserted walls and wedge them to their seats, substantially as described.

' 9. In combination a needle cylinder, needle guiding walls inserted therein, a sinker or web -holder ring composed of sections clamping between them portionsV of the inserted walls and one ofsaid sections having an inclined face to wedge the inserted walls against their seats in the cylinder,

'substantially 'as described.

10. In combination a needle cylinder, needle guiding walls inserted therein, a dial or ring for holding and guiding sinkers or web holders,

said ring being supported by the inserted walls, tached to the lower face-` of the said dial or ring, and having an inclined face acting walls" to wedge them to their seats in thecylinde'r, substantially as described. f

11. In combination with a needle cylinder, needle guiding? walls inserted therein and composed of upper and lower secwardly and outwardly inclined ends of the upper sections, meansor holding the upper sections in the c'ylinder and means for of the lower sections,

- s aid means havingja wedge face engaging a corresponding face of' the lower sections to wedge the lower sections inwardly and upl wardly and causingtheir-upper ends to be wedged under the lower ends of the upper sections.

lower sections, interlocking at their meetand a web holder or l sinker dial or ring surrounding said in n 12. Inicombination with a needle cylin- .der, inserted walls composed of upper and.

and a ring adjustably atf tlon's, the inwardly beveled upper ends ofthe lower sectionsflitting under the downice lll@

ends by the` upper endof the lower sec-v tion ttingbetween the lower end of the upper section and the needle cylinder, said lower section having a fulcrum point thereon. bearing onthe cylinder, means for holdlng the lowerend oi' the lower section, subl'stantially as described, and means for holdmg the upper sections. to the' cylinder against the fulcrum agtion of the lowerv sections.l i

Y 13. In combination a needle cylinder, up-

rac

per and lower wall sections seated therein,

Said lower section engaging the inner side of portions of the upper wall sections said upper ends an means for holding the lower 4ends of the lower wall sections, said upper wall sections having free depending end- -Afulcruming on the` cyhnder at a point below ends carrying said engagin portions, with means above said ends for olding the upper sections in place, substantially as described.

5` 14. In combination a. needle cylinder, a support on which the needle cylinder rests, means for connecting the cylinder with said support removably, removable needle guiding walls carried by the cylinder having 10 inclined lower ends, a ring having an in-A ohne corresponding to the incline of the lower Iendsvof'the needle walls and screws seated in the lower end of the cylinder above the support and having heads reaching out under the said ring to adjust it vertically when the screws are turned, substan-l tially as described.

In testimony whereof, I affix my signature in presence of two witnesses.

E. R. Ronn'rs B. C. BRAM'. 

